Profiling-machine.



F. K. HENDRlCKSUN.

PROF ILING MACHINE.

APPLICATION FILED JUNE 9 l9l5.

Patented Jan. 2.5, 1916.

2 SHEETS-SHEET l.

[UNITED STATES PATENT OFFICE.

FRED K. HENDRICKSON, 0F WORCESTER, MASSACHUSETTS, ASSIGNOR- TO REED- PRENTICE COMPANY, A CORPORATION OF MASSACHUSETTS.

PROFILING-MACHINE.

T 0 all whom'it may concern Be it known that I, FRED K. HENDRICK- SON, a citizen of the United States, residing at \Vorcester, in .the county of-lVorcester and State of Massachusetts, have invented a new and useful Profiling-Machine, of which the following is a specification.

This. invention relates to a profiling machine and particularly. to a new and improved means for mounting and adjusting the guide pin or guide pin holder.

The principal objects of the invention are i to simplify the supporting head which carries the profiling tool and also the guide pin and yet provide a positive, simple, and readily accessible means for adjusting the guide pin, and one by whi h the same can be adjusted accurately by a single adjustment without resorting to any cut and try methods; to provide a construction in which although the guide pin holder, being adjustable, is not an integral part of the head, yet it is provided with a long bearing surface throughout the whole 2 length of which it intimately engages the head and this surface is on a curve so that it furnishes a support at points throughout a wide angle around the guide pin and thus substantially prevents chattering, and to provide a construction in which the guide pin holder, and especially its adjusting means, areal-ranged on the outside of the head and thus the location of any parts in front of them is avoided. In this way the parts are readily accessible for. adjustment, replacement, repairs, or any other purpose.

The invention also involves other features of construction as will appear.

Reference is to be had to the accompanying drawings, in which-- Figure 1 is a horizontal sectional view of a portion of a profiling machine showing the main part of the supporting head in plan, but parts in horizontal section; Fig. 2 is'a front elevation of the same; Fig. 3 is a plan of a portion of the head with the guide pin holder removed; Fig. 4 is a plan of the guide pin holder; Fig. 5 is a front elevation thereof; Fig. 6 is an end elevation of the same; Fig. 7 is a.front end elevation of the adjusting worm, and Fig. 8 is a side view of the same.

The invention is designed to be applied to an ordinary type of profiling machine and for. that reason'the' machine itself is not Patented Jan. 25, 1916.

for all purposes and yet to provide a convenient and simple adjustment, the head is shown as provided with a flat horizontal shelf or projection 13, and below this pro ection is a space bounded on the inner side by a curved wall 1 This curved wall constitutes a part of the surface and is intended to be machined to shape so that it may con- 7 stitute a part of the support and assist in preserving the rigidity of the device as will appear.

Near the outer corner of the projection 13 is a hole 15 for receiving a pivot pin 16.

This pivot .pin extends above and below the projection-13 and is shown as held in positron by a set screw 17 or the like. Pivoted on the top and bottom projecting ends of this pin is a segmental guide pin holder 20.

' This holder has an arcuate outer surface 21 accurately machined to fit the curvedsurface 14 when the holder is in position. It will be seen that on account of this construction the holder, although made movable for the purpose of adjustment, is virtually a part of the head as it fits both above and below the projection 13 and at its top and bottom surfaces and throughout the are 14 is in intimate contact therewith. This makes the holder rigid and tends to prevent chattering. This holder is shown as provided with another perforation in which the guide pin 12 is secured. This is held in place firmly by means of a split boss and binding screw 22. Therefore the guide pin can move with the holder about the pivot 16.

Mounted on the front of the head is a removable plate 24 having a perforation 25 for the reception of the end of a wrench. Mountd in a socket in the edge of the head under this plate is a worm 26 having an end socket for receiving the wrench. This registers with the perforation 25 and has threads which mesh with threads 27 V10- cated on a small are on the guide pin holder and having the form of a fine threaded screw is designed simply tobe screwed down gear. .It will be obvious that by inserting the wrench and turning the worm I the" holder will be adjusted about the pivot 16 and consequently the guide pin will be moved toward or from the profiling tool 11. It will be understood, of course, that this adjustment is very slight in practice.

- -.The guide pin holder 20 is provided with a holeinto which passes a binding screw 30. This binding screw is screw threaded into the lower portion of the holder and extends across the space between the two parts through a hole ,31 which is larger than this screwv and therefore permits of the above mentioned adjustment. This tight to hold the parts in their adjusted are all located on the outside of the head position. v

Although I have described only one of the guide pin'holders above it'will be understood that the description applies equally to the other one whenever that is used. It will be seen that by this construction of the guide pin holder, the means for adjusting it, and the means for binding it so as to fit snug at lat, rigidity is secured When everything is properly adjusted. and

:there are no small or weak parts that will interfere with thisrigidity.

Although I have illustrated and described only a single embodiment of the invention,

I 'am aware of the fact tha-t many 'modi-- *fications can be made therein by any person skilled in the art without departing from the scope of the invention as ex- 'pressed'in the claims. Therefore, I do not wish tobe limited to all the details of construction herein shown and described, but- What I do claim is '1. In a profiling machine, the combination With a supporting head having fixed means for guiding and holding a profiling tool and provided with a horizontal shelf,

of a guide pin holder pivoted on said shelf resting on its upper surface and projecting under its lowersurface for supporting a ---;g ide pin, said holder be adapted t0 guide the pin toward and from the profiling tool about said 'pivot for adjusting In, a profiling machine, the combination with a supporting head, having a a curved surface on its outer side and provided with a projection extending to the center of the curve and a pivot on said projection, of a guide pin holder mounted to swing about said pivot and to fit said curved surface.

3.'In a profiling machine, the combination with a supporting head having fixed means for-guiding and holding a profiling tool, of a guide pin holder pivoted on said head for supporting a guide pin, said holder being adapted to swing the guide pin toward and fromthe profiling tool about said pivot for adjusting purposes and a binding screw carried by the holder for securing it in fixed position to the head.

4. Ina profiling machine, the combina-- tion with a supporting head having fixed means for guiding and holding a profiling tool and provided with a horizontal pr0- jection and an arcuate surface extending from said projection, of a'guidepin holder pivoted on said projection at the center of said arcuate surface and having meansfor,

supporting a guide pin, and a surface fitting said arcuate surface, said holder being adapted to swing tpward and from the profiling tool about said pivot, while said surfaces are in contact.

5. :In a profiling machine, the combination with a supporting head having a curved outer surface, a. guide pin holder supported on said head and having a surface fitting said curved surface'for steadying the guide pin holder, and means for adjusting said guide pin holder along said curved surface. I

6. In a profiling machine, the combination with a supporting head, of a pin holder pivoted on said head and having a worm thread thereon concentric with the pivot thereof, and a worm carried'by said head and meshing with said worm thread for turning the holderon its pivot.

' 7. In a profiling machine, the combination with a supporting head, of a guide pin holder pivoted, on said head and having a worm thread thereon concentric with the pivot thereof, a worm carried by said head and meshing with said worm thread for turning the holder on its pivot, and a plate on the front of the head holding said worm in position in the head, said worm having means accessibly located through said plate by which it can be turned and the holder adjusted. 1

In testimony whereof I have hereunto set my hand.

FRED K. HENDRICKSON. 

